Model: MS21321-2

Sensitive Switch

Properties:

Thread Class
2a
Body Style
Bushing mounted
Overall Length
2.575 inches
Overall Height
1.031 inches
Overall Width
1.031 inches
Body Diameter
1.031 inches
Bushing Length
Between 0.970 inches and 1.030 inches
Body Length
1.200 inches
Actuator Style
Round
Actuator Diameter
Between 0.240 inches and 0.260 inches
Actuator Height
Between 1.345 inches and 1.405 inches
Actuator Free Position Height
0.375 inches
Actuator Adapter Style
Pushbutton
Adapter Bushing Length
Between 0.970 inches and 1.030 inches
Maximum Voltage Rating In Volts
28.0 dc
Inclosure Type
Fully enclosed
Mounting Method
Threaded bushing
Thread Size
0.625 inches
Nonpile-up Contact Arrangement
4 pole, double throw, one position momentary single switch unit
Switch Release Force
64.0 ounces
Switch Actuating Force
Between 96.0 ounces and 192.0 ounces
Actuator Movement
Between 0.040 pretravel inches and 0.250 overtravel inches and 0.020 differential inches
Contact Load Current Rating At Maximum Rated Voltage
7.000 amperes resistive dc and 4.000 amperes inductive dc and 4.000 amperes motor dc
Test Data Document
81349-mil-s-8805 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unef
Terminal Type And Quantity
12 wire lead
Specification Data
81349-mil-s-8805/39 government specification
NSN
5930-00-949-1166
Part Number
MS21321-2
Description
Switch,sensitive
CAGE
81349

A switch with a quick-acting mechanism actuated by a highly delicate tactile contact. Includes membrane switch. excludes switch, flexible; switch, pressure; and switch, thermostatic.

Part MS21321-2 NSN 5930-00-949-1166

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00399
FIIG:
A053A0
Concept No.:
App. Key:
S
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.9000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536509050
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, slide, for a voltage not exceeding 1,000 v

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